:root {
  --bg: #f5f6f8; --fg: #1d2330; --muted: #6b7280; --card: #fff; --line: #e3e6eb;
  --accent: #1f6feb; --ok: #1a7f37; --err: #cf222e; --warn: #9a6700;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; font-size: 15px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1218; --fg: #e6e8ec; --muted: #9aa3af; --card: #171b23; --line: #2a303b; --accent: #4c8dff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header.top { display: flex; gap: 24px; align-items: center; padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 18px; }
.brand small { font-weight: 400; color: var(--muted); }
nav { display: flex; gap: 16px; flex: 1; }
nav a { color: var(--fg); padding: 4px 0; }
nav a.active { border-bottom: 2px solid var(--accent); }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 24px; margin: 8px 0 20px; } h2 { font-size: 17px; margin: 0 0 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; margin-bottom: 20px; }
.card.narrow { max-width: 380px; margin: 60px auto; }
.card.secret { border-color: var(--warn); border-width: 2px; }
.danger-zone { border-color: var(--err); }
details > summary { cursor: pointer; font-weight: 600; }
details[open] > summary { margin-bottom: 12px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px 16px; align-items: end; margin-top: 12px; }
.grid .wide { grid-column: 1 / -1; }
label { display: block; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
label.check { color: var(--fg); font-size: 14px; }
input, select { display: block; width: 100%; margin-top: 4px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); font: inherit; }
label.check input { display: inline; width: auto; margin: 0 6px 0 0; }
fieldset { border: 1px solid var(--line); border-radius: 6px; margin: 0 0 12px; }
button, .btn { display: inline-block; padding: 7px 14px; border: 0; border-radius: 6px; background: var(--accent); color: #fff; font: inherit; cursor: pointer; }
.btn { font-size: 13px; padding: 3px 10px; margin-left: 8px; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button.danger { background: var(--err); }
button.small { padding: 3px 9px; font-size: 13px; }
button.link { background: none; color: var(--muted); padding: 0; }
form.inline { display: inline; } .logout { margin: 0; }
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin-bottom: 16px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
td form { margin: 0; }
.card table { border: 0; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; color: #fff; vertical-align: middle; }
.badge.ok { background: var(--ok); } .badge.err { background: var(--err); } .badge.off { background: var(--muted); }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; }
.flash.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); }
.flash.error { background: color-mix(in srgb, var(--err) 15%, transparent); }
.muted { color: var(--muted); }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; }
code.big { font-size: 18px; padding: 2px 6px; background: var(--bg); border-radius: 4px; }
code.small { font-size: 11px; word-break: break-all; }
pre { background: var(--bg); border: 1px solid var(--line); padding: 12px; border-radius: 6px; overflow-x: auto; font-size: 13px; white-space: pre-wrap; word-break: break-all; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.tile b { display: block; font-size: 28px; } .tile span { color: var(--muted); font-size: 13px; }
.search { display: flex; gap: 8px; margin-bottom: 12px; max-width: 420px; } .search input { margin: 0; }
.checklist { max-height: 260px; overflow-y: auto; padding-left: 22px; margin-bottom: 12px; }
ul.dl { padding-left: 18px; } ul.dl li { margin: 4px 0; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; } dt { color: var(--muted); } dd { margin: 0; }
@media (max-width: 640px) { header.top { padding: 12px 16px; } th:nth-child(n+4), td:nth-child(n+4) { display: none; } }